return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C2H2ClF (1-chloro-1-fluoroethylene)

using model chemistry: HF/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/SDD
 hartrees
Energy at 0K-635.719343
Energy at 298.15K-635.721726
HF Energy-635.719343
Nuclear repulsion energy146.619832
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HF/SDD
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3501 3152 0.34      
2 A' 3383 3046 2.92      
3 A' 1869 1683 156.44      
4 A' 1554 1399 0.85      
5 A' 1278 1151 193.07      
6 A' 1017 916 63.74      
7 A' 690 621 50.42      
8 A' 435 392 2.28      
9 A' 377 339 1.54      
10 A" 1104 994 98.04      
11 A" 803 723 0.65      
12 A" 544 490 0.37      

Unscaled Zero Point Vibrational Energy (zpe) 8276.9 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 7452.5 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HF/SDD
ABC
0.34881 0.16113 0.11021

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.477 0.000
C2 -0.970 1.362 0.000
F3 1.320 0.824 0.000
Cl4 -0.196 -1.289 0.000
H5 -0.739 2.409 0.000
H6 -1.995 1.059 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 Cl4 H5 H6
C11.31401.36501.77682.06842.0784
C21.31402.35292.76281.07161.0688
F31.36502.35292.60082.59783.3235
Cl41.77682.76282.60083.73782.9585
H52.06841.07162.59783.73781.8444
H62.07841.06883.32352.95851.8444

picture of 1-chloro-1-fluoroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 119.891 C1 C2 H6 121.101
C2 C1 F3 122.862 C2 C1 Cl4 126.073
F3 C1 Cl4 111.066 H5 C2 H6 119.008
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.280      
2 C -0.406      
3 F -0.299      
4 Cl -0.042      
5 H 0.236      
6 H 0.232      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.098 1.295 0.000 2.465
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.399 -2.627 0.000
y -2.627 -28.085 0.000
z 0.000 0.000 -31.015
Traceless
 xyz
x -0.849 -2.627 0.000
y -2.627 2.622 0.000
z 0.000 0.000 -1.773
Polar
3z2-r2-3.546
x2-y2-2.314
xy-2.627
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.137 -0.957 0.000
y -0.957 6.246 0.000
z 0.000 0.000 1.730


<r2> (average value of r2) Å2
<r2> 98.943
(<r2>)1/2 9.947